The obsidian artifacts were traced back to four primary regions, including one in Idaho, one in Wyoming, and two in British Columbia, experts said. Photo by Todd Kristensen Volcanic glass has been ...

Obsidian from the island of Milos, found in Franchthi Cave, shows seafaring in Greece began over 11,000 years ago in the ...

Aşıklı Tepe sits only a few kilometers from some of central Anatolia’s most important obsidian sources. Its tools, arrowheads ...

(CNN) — Glass rarely forms naturally from organic materials. However, in 2020, researchers discovered a black, glassy substance inside the skull of a person killed during the eruption of Italy’s Mount ...

Fragments from the brain of a man killed by the Mount Vesuvius eruption in the year 79 are smooth and shiny but still contain visible neurons. They look like small pieces of obsidian, smooth and shiny ...